Fix frenzy stab

[derNarr]

This is a first attempt to allow for a stab after a block on a frenzy player.

Tests go through smoothly now, but I have to do some manual testing with this as well.

Code for Blitz is still missing.

(This PR also contains the fix for the throw teammate as I branched from the wrong starting branch -- I might fix this, if the throw teammate PR is not merged soon.)

[derNarr]

This one is not correct yet. It allows to stab anyone after the first Frenzy DO NOT MERGE :-)

[njustesen]

What's the status on this one? Seems like good work but not quite there?

[derNarr]

I did not cracked it, but now after some time is gone by, I might give it a fresh look. I let you know, if I make any progress. As this was a TODO in the code, I thought I share my still unsuccessful steps in this direction.